This course is developed and regularly updated by Itzik Ben-Gan, a mentor and one of the founders of Lucient (former SolidQ), author of award winning books about T-SQL, a columnist in SQL Server Pro magazine, a Microsoft Data Platform MVP since 1999, and a regular speaker in SQL Server related events.
Advanced T-SQL Querying, Programming and Tuning with Itzik Ben-Gan
Kurskod MC028
The course focuses on writing and tuning queries and programming with T-SQL in SQL Server 2012 – 2019 and in Azure SQL Database.
Pris
39950 kr
(exklusive moms)
Längd
5 dagar
Ort och startdatum
Hålls på begäran
Kursen hålls på begäran
Kontakta oss för mer information.
Telefon: 08-562 557 50
E-post: kursbokning@cornerstone.se
In this course you will learn the details and capabilities of T-SQL in the following areas: Logical Query Processing; Query Tuning (Internals and Index Tuning, including Columnstore Indexes, Batch Processing, Query Store, Cardinality Estimations, Temporary Tables, Sets vs. Cursors, Query Tuning with Query Revisions); Subqueries and Table Expressions (Derived Tables, CTEs, Views, Inline Table-Valued Functions), Recursive Queries, APPLY Operator, Joins and Set Operators; Aggregating, Pivoting and Windowing (including Aggregate, Ranking and Offset Window Functions), Custom Aggregates and STRING_AGG; TOP and OFFSET-FETCH; Data Modification; Working with Date and Time (including System-Versioned Temporal Tables); Programmable Objects (Dynamic SQL, User Defined Functions, Stored Procedures, Triggers, Transactions and Concurrency, Exception Handling); In-Memory OLTP.
Along the course you will learn how to use T-SQL to solve practical problems such as: Relational Division, Missing and Existing Ranges (Gaps and Islands), Separating Elements, Pivoting and Unpivoting, Ranking and Offset, Running Totals, Moving Averages, YTD, Custom Aggregations, TOP and OFFSET-FETCH Problems, Paging, Top N Per Group, Median, Data De-Duplication, Handling Sequences, Merging Data, Treatment of Temporal Intervals (Intersection, Max Concurrent, Packing), Dynamic Search Condition (aka Dynamic Filtering), Migrating On-Disk to Memory Optimized Data, and more.
You will learn how to tune your queries, how to develop efficient routines including user defined functions, stored procedures and triggers, work in multi-user environments with transactions and isolation levels, and use dynamic SQL securely and efficiently.
The course provides a dedicated module focusing on query tuning. The module covers internals and index tuning, including coverage of Columnstore data, batch processing, index access methods, cardinality estimations, query store, temporary tables, set vs. cursors, and query tuning using query revisions. Moreover, query tuning is in the heart of this course and is incorporated in the different modules throughout the course.
With each querying/programming task the discussions will revolve around logical aspects, set-based vs. iterative/procedural programming and optimization of the solutions.
About Itzik Ben-Gan
Target Audience and Prerequisites
This course is intended for:
- T-SQL Developers, DBAs, BI Specialists, Data Scientists, Architects, and Analysts
- Those that need to write or review T-SQL code in SQL Server 2012 – 2019 and Azure SQL Database
At least one year of T-SQL querying and programming experience in SQL Server or Azure SQL Database is recommended as prerequisite.
Course Objectives
Upon completion of this course, the student will:
- Understand logical query processing
- Understand SQL Server’s internal data structures
- Be able to analyze and tune query performance
- Be able to analyze query execution plans
- Understand cardinality estimations
- Be able to solve complex querying and programming tasks
- Think in terms of sets
- Be able to compare set based and iterative solutions
- Use window functions to improve your solutions
- Handle date and time data including intervals
- Create system-versioned temporal tables
- Describe performance problems related to use of user defined functions and possible workarounds
- Understand compilations, recompilations, plan caching and reuse
- Understand transactions and concurrency aspects of database programming
- Know how to handle hierarchical data and write recursive queries
- Be able to migrate on-disk data to memory optimized data
- Describe T-SQL enhancements in SQL Server 2012 – 2019
Course Details
Logical Query Processing
- Logical Query Processing Order
- Logical Query Processing Example
- Phase Details
Query Tuning
- Internals and Index Tuning
- New Cardinality Estimator
- Temporary Tables
- Sets vs. Cursors
- Query Tuning with Query Revisions
Multi-Table Queries
- Subqueries and Table Expressions
- APPLY Operator
- Joins
- Set Operators
Grouping, Pivoting and Windowing
- Window Functions
- Pivoting and Unpivoting Data
- Custom Aggregations
- STRING_AGG
- Grouping Sets (bonus self-study unit)
TOP and OFFSET-FETCH
- TOP
- OFFSET-FETCH
- TOP N Per Group
Data Modification
- Inserting Data
- Sequences
- Deleting Data
- Updating Data
- Merging Data
- The OUTPUT Clause
Working with Date and Time
- Date and Time Datatypes
- Date and Time Functions
- Date and Time Challenges
- System-Versioned Temporal Tables
- Date and Time Querying Tasks
Programmable Objects
- Dynamic SQL
- User Defined Functions
- Stored Procedures
- Triggers
- Transactions and Concurrency
- Exception Handling
In-Memory OLTP
- Intro to In-Memory OLTP
- Architecture
- Memory Optimized Table and Indexes
- Natively Compiled Modules
- Transaction Semantics